Enhanced Conversion upload

[Carl Arthell]

Context - We want to upload a conversion with the following data

- GCLID + MATCHID + userIdentifiers(hashed email and phone)

But we are receiving issues when uploading it.

Did some research and couple of ai prompts about the issue

From google AI and chat GPT response -  its says cannot combine GCLID and user identifiers

From CM360 Documentation and Articles - it doesn't directly says it cannot but it's more likely implied. so I just want some clarifications if GCLID+MATCHID+user identifiers can be uploaded together in 1 offline conversion request.

[DCM API (DoubleClick Campaign Mgr)]

Hi,

Thank you for reaching out to the CM360 API support team.

You cannot combine GCLID, MATCHID, and user identifiers (such as hashed email and phone) in a single offline conversion upload request. The CM360 Conversion API documentation clearly states that these identifiers are mutually exclusive.

If you're still encountering any specified issue after following our suggestion, please provide the the following information:

• DCM Account ID: You can find this under your profile icon in the Campaign Manager 360 UI, or in the Account section under the Admin drop-down.
• A detailed description of the issue or question you're experiencing.

You can send the details via Reply privately to the author option, or direct private reply to this email.

 

Thanks,
 

DCM API Team

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[2025-09-25 06:05:46Z GMT] This message is in relation to case "ref:!00D1U01174p.!500Ht01u7Vak:ref" (ADR-00333660)